label.c revision 8589
1/* 2 * The new sysinstall program. 3 * 4 * This is probably the last program in the `sysinstall' line - the next 5 * generation being essentially a complete rewrite. 6 * 7 * $Id: label.c,v 1.5 1995/05/17 16:16:09 jkh Exp $ 8 * 9 * Copyright (c) 1995 10 * Jordan Hubbard. All rights reserved. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer, 17 * verbatim and that no modifications are made prior to this 18 * point in the file. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in the 21 * documentation and/or other materials provided with the distribution. 22 * 3. All advertising materials mentioning features or use of this software 23 * must display the following acknowledgement: 24 * This product includes software developed by Jordan Hubbard 25 * for the FreeBSD Project. 26 * 4. The name of Jordan Hubbard or the FreeBSD project may not be used to 27 * endorse or promote products derived from this software without specific 28 * prior written permission. 29 * 30 * THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``AS IS'' AND 31 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 32 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 33 * ARE DISCLAIMED. IN NO EVENT SHALL JORDAN HUBBARD OR HIS PETS BE LIABLE 34 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 35 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 36 * OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION) 37 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 38 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 39 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 40 * SUCH DAMAGE. 41 * 42 */ 43 44#include "sysinstall.h" 45#include <ctype.h> 46#include <sys/disklabel.h> 47 48/* 49 * Everything to do with editing the contents of disk labels. 50 */ 51 52/* A nice message we use a lot in the disklabel editor */ 53#define MSG_NOT_APPLICABLE "That option is not applicable here" 54 55/* 56 * I make some pretty gross assumptions about having a max of 50 chunks 57 * total - 8 slices and 42 partitions. I can't easily display many more 58 * than that on the screen at once! 59 * 60 * For 2.1 I'll revisit this and try to make it more dynamic, but since 61 * this will catch 99.99% of all possible cases, I'm not too worried. 62 */ 63#define MAX_CHUNKS 50 64 65/* Where to start printing the freebsd slices */ 66#define CHUNK_SLICE_START_ROW 2 67#define CHUNK_PART_START_ROW 10 68 69/* The smallest filesystem we're willing to create */ 70#define FS_MIN_SIZE 2048 71 72 73/* All the chunks currently displayed on the screen */ 74static struct { 75 struct disk *d; 76 struct chunk *c; 77 PartType type; 78} label_chunk_info[MAX_CHUNKS + 1]; 79static int here; 80 81/* See if we're already using a desired partition name */ 82static Boolean 83check_conflict(char *name) 84{ 85 int i; 86 87 for (i = 0; label_chunk_info[i].d; i++) 88 if (label_chunk_info[i].type == PART_FILESYSTEM 89 && label_chunk_info[i].c->private 90 && !strcmp(((PartInfo *)label_chunk_info[i].c->private)->mountpoint, name)) 91 return TRUE; 92 return FALSE; 93} 94 95/* How much space is in this FreeBSD slice? */ 96static int 97space_free(struct chunk *c) 98{ 99 struct chunk *c1 = c->part; 100 int sz = c->size; 101 102 while (c1) { 103 if (c1->type != unused) 104 sz -= c1->size; 105 c1 = c1->next; 106 } 107 if (sz < 0) 108 msgFatal("Partitions are larger than actual chunk??"); 109 return sz; 110} 111 112/* Snapshot the current situation into the displayed chunks structure */ 113static void 114record_label_chunks() 115{ 116 int i, j, p; 117 struct chunk *c1, *c2; 118 Device **devs; 119 Disk *d; 120 121 devs = deviceFind(NULL, DEVICE_TYPE_DISK); 122 if (!devs) { 123 msgConfirm("No disks found!"); 124 return; 125 } 126 127 j = p = 0; 128 /* First buzz through and pick up the FreeBSD slices */ 129 for (i = 0; devs[i]; i++) { 130 if (!devs[i]->enabled) 131 continue; 132 d = (Disk *)devs[i]->private; 133 if (!d->chunks) 134 msgFatal("No chunk list found for %s!", d->name); 135 136 /* Put the slice entries first */ 137 for (c1 = d->chunks->part; c1; c1 = c1->next) { 138 if (c1->type == freebsd) { 139 label_chunk_info[j].type = PART_SLICE; 140 label_chunk_info[j].d = d; 141 label_chunk_info[j].c = c1; 142 ++j; 143 } 144 } 145 } 146 /* Now run through again and get the FreeBSD partition entries */ 147 for (i = 0; devs[i]; i++) { 148 if (!devs[i]->enabled) 149 continue; 150 d = (Disk *)devs[i]->private; 151 /* Then buzz through and pick up the partitions */ 152 for (c1 = d->chunks->part; c1; c1 = c1->next) { 153 if (c1->type == freebsd) { 154 for (c2 = c1->part; c2; c2 = c2->next) { 155 if (c2->type == part) { 156 if (c2->subtype == FS_SWAP) 157 label_chunk_info[j].type = PART_SWAP; 158 else 159 label_chunk_info[j].type = PART_FILESYSTEM; 160 label_chunk_info[j].d = d; 161 label_chunk_info[j].c = c2; 162 ++j; 163 } 164 } 165 } 166 else if (c1->type == fat) { 167 label_chunk_info[j].type = PART_FAT; 168 label_chunk_info[j].d = d; 169 label_chunk_info[j].c = c1; 170 } 171 } 172 } 173 label_chunk_info[j].d = NULL; 174 label_chunk_info[j].c = NULL; 175 if (here >= j) 176 here = j ? j - 1 : 0; 177} 178 179/* A new partition entry */ 180static PartInfo * 181new_part(char *mpoint, Boolean newfs) 182{ 183 PartInfo *ret; 184 185 ret = (PartInfo *)safe_malloc(sizeof(PartInfo)); 186 strncpy(ret->mountpoint, mpoint, FILENAME_MAX); 187 strcpy(ret->newfs_cmd, "newfs"); 188 ret->newfs = newfs; 189 return ret; 190} 191 192/* Get the mountpoint for a partition and save it away */ 193PartInfo * 194get_mountpoint(struct chunk *old) 195{ 196 char *val; 197 PartInfo *tmp; 198 199 val = msgGetInput(old && old->private ? ((PartInfo *)old->private)->mountpoint : NULL, 200 "Please specify a mount point for the partition"); 201 if (val) { 202 /* Is it just the same value? */ 203 if (old && old->private && !strcmp(((PartInfo *)old->private)->mountpoint, val)) 204 return NULL; 205 if (check_conflict(val)) { 206 msgConfirm("You already have a mount point for %s assigned!", val); 207 return NULL; 208 } 209 else if (*val != '/') { 210 msgConfirm("Mount point must start with a / character"); 211 return NULL; 212 } 213 else if (!strcmp(val, "/")) { 214 if (old) 215 old->flags |= CHUNK_IS_ROOT; 216 } 217 else if (old) 218 old->flags &= ~CHUNK_IS_ROOT; 219 safe_free(old ? old->private : NULL); 220 tmp = new_part(val, TRUE); 221 if (old) { 222 old->private = tmp; 223 old->private_free = safe_free; 224 } 225 return tmp; 226 } 227 return NULL; 228} 229 230/* Get the type of the new partiton */ 231static PartType 232get_partition_type(void) 233{ 234 char selection[20]; 235 static unsigned char *fs_types[] = { 236 "FS", 237 "A file system", 238 "Swap", 239 "A swap partition.", 240 }; 241 242 if (!dialog_menu("Please choose a partition type", 243 "If you want to use this partition for swap space, select Swap.\nIf you want to put a filesystem on it, choose FS.", -1, -1, 2, 2, fs_types, selection, NULL, NULL)) { 244 if (!strcmp(selection, "FS")) 245 return PART_FILESYSTEM; 246 else if (!strcmp(selection, "Swap")) 247 return PART_SWAP; 248 } 249 return PART_NONE; 250} 251 252/* If the user wants a special newfs command for this, set it */ 253static void 254getNewfsCmd(PartInfo *p) 255{ 256 char *val; 257 258 val = msgGetInput(p->newfs_cmd, 259 "Please enter the newfs command and options you'd like to use in\ncreating this file system."); 260 if (val) 261 strncpy(p->newfs_cmd, val, NEWFS_CMD_MAX); 262} 263 264 265#define MAX_MOUNT_NAME 12 266 267#define PART_PART_COL 0 268#define PART_MOUNT_COL 8 269#define PART_SIZE_COL (PART_MOUNT_COL + MAX_MOUNT_NAME + 3) 270#define PART_NEWFS_COL (PART_SIZE_COL + 7) 271#define PART_OFF 38 272 273/* How many mounted partitions to display in column before going to next */ 274#define CHUNK_COLUMN_MAX 6 275 276/* stick this all up on the screen */ 277static void 278print_label_chunks(void) 279{ 280 int i, j, srow, prow, pcol; 281 int sz; 282 283 clear(); 284 attrset(A_REVERSE); 285 mvaddstr(0, 25, "FreeBSD Disklabel Editor"); 286 attrset(A_NORMAL); 287 288 for (i = 0; i < 2; i++) { 289 attrset(A_UNDERLINE); 290 mvaddstr(CHUNK_PART_START_ROW - 1, PART_PART_COL + (i * PART_OFF), 291 "Part"); 292 attrset(A_NORMAL); 293 294 attrset(A_UNDERLINE); 295 mvaddstr(CHUNK_PART_START_ROW - 1, PART_MOUNT_COL + (i * PART_OFF), 296 "Mount"); 297 attrset(A_NORMAL); 298 299 attrset(A_UNDERLINE); 300 mvaddstr(CHUNK_PART_START_ROW - 1, PART_SIZE_COL + (i * PART_OFF) + 2, 301 "Size"); 302 attrset(A_NORMAL); 303 304 attrset(A_UNDERLINE); 305 mvaddstr(CHUNK_PART_START_ROW - 1, PART_NEWFS_COL + (i * PART_OFF), 306 "Newfs"); 307 attrset(A_NORMAL); 308 } 309 310 srow = CHUNK_SLICE_START_ROW; 311 prow = CHUNK_PART_START_ROW; 312 pcol = 0; 313 314 for (i = 0; label_chunk_info[i].d; i++) { 315 if (i == here) 316 attrset(A_REVERSE); 317 /* Is it a slice entry displayed at the top? */ 318 if (label_chunk_info[i].type == PART_SLICE) { 319 sz = space_free(label_chunk_info[i].c); 320 mvprintw(srow++, 0, 321 "Disk: %s\tPartition name: %s\tFree: %d blocks (%dMB)", 322 label_chunk_info[i].d->name, 323 label_chunk_info[i].c->name, sz, (sz / 2048)); 324 } 325 /* Otherwise it's a DOS, swap or filesystem entry, at the bottom */ 326 else { 327 char onestr[PART_OFF], num[10], *mountpoint, *newfs; 328 329 /* 330 * We copy this into a blank-padded string so that it looks like 331 * a solid bar in reverse-video 332 */ 333 memset(onestr, ' ', PART_OFF - 1); 334 onestr[PART_OFF - 1] = '\0'; 335 /* Go for two columns */ 336 if (prow == (CHUNK_PART_START_ROW + CHUNK_COLUMN_MAX)) { 337 pcol = PART_OFF; 338 prow = CHUNK_PART_START_ROW; 339 } 340 memcpy(onestr + PART_PART_COL, label_chunk_info[i].c->name, 341 strlen(label_chunk_info[i].c->name)); 342 /* If it's a filesystem, display the mountpoint */ 343 if (label_chunk_info[i].type == PART_FILESYSTEM) { 344 if (label_chunk_info[i].c->private == NULL) { 345 static int mnt = 0; 346 char foo[10]; 347 348 /* 349 * Hmm! A partition that must have already been here. 350 * Fill in a fake mountpoint and register it 351 */ 352 sprintf(foo, "/mnt%d", mnt++); 353 label_chunk_info[i].c->private = new_part(foo, FALSE); 354 label_chunk_info[i].c->private_free = safe_free; 355 } 356 mountpoint = ((PartInfo *)label_chunk_info[i].c->private)->mountpoint; 357 newfs = ((PartInfo *)label_chunk_info[i].c->private)->newfs ? "Y" : "N"; 358 } 359 else if (label_chunk_info[i].type == PART_SWAP) { 360 mountpoint = "swap"; 361 newfs = " "; 362 } 363 else if (label_chunk_info[i].type == PART_FAT) { 364 mountpoint = "DOS FAT"; 365 newfs = "*"; 366 } 367 else { 368 mountpoint = "<unknown>"; 369 newfs = "*"; 370 } 371 for (j = 0; j < MAX_MOUNT_NAME && mountpoint[j]; j++) 372 onestr[PART_MOUNT_COL + j] = mountpoint[j]; 373 snprintf(num, 10, "%4ldMB", label_chunk_info[i].c->size ? 374 label_chunk_info[i].c->size / 2048 : 0); 375 memcpy(onestr + PART_SIZE_COL, num, strlen(num)); 376 memcpy(onestr + PART_NEWFS_COL, newfs, strlen(newfs)); 377 onestr[PART_NEWFS_COL + strlen(newfs)] = '\0'; 378 mvaddstr(prow, pcol, onestr); 379 ++prow; 380 } 381 if (i == here) 382 attrset(A_NORMAL); 383 } 384} 385 386static void 387print_command_summary() 388{ 389 mvprintw(17, 0, 390 "The following commands are valid here (upper or lower case):"); 391 mvprintw(19, 0, "C = Create Partition D = Delete Partition M = Mount Partition"); 392 mvprintw(20, 0, "N = Newfs Options T = Toggle Newfs ESC = Exit this screen"); 393 mvprintw(21, 0, "The default target will be displayed in "); 394 395 attrset(A_REVERSE); 396 addstr("reverse video."); 397 attrset(A_NORMAL); 398 mvprintw(22, 0, "Use F1 or ? to get more help, arrow keys to move."); 399 move(0, 0); 400} 401 402int 403diskLabelEditor(char *str) 404{ 405 int sz, key = 0; 406 Boolean labeling; 407 char *msg = NULL; 408 PartInfo *p; 409 PartType type; 410 411 labeling = TRUE; 412 keypad(stdscr, TRUE); 413 record_label_chunks(); 414 415 if (!getenv(DISK_PARTITIONED)) { 416 msgConfirm("You need to partition your disk(s) before you can assign disk labels."); 417 return 0; 418 } 419 while (labeling) { 420 print_label_chunks(); 421 print_command_summary(); 422 if (msg) { 423 attrset(A_REVERSE); mvprintw(23, 0, msg); attrset(A_NORMAL); 424 beep(); 425 msg = NULL; 426 } 427 refresh(); 428 key = toupper(getch()); 429 switch (key) { 430 431 case KEY_UP: 432 case '-': 433 if (here != 0) 434 --here; 435 break; 436 437 case KEY_DOWN: 438 case '+': 439 case '\r': 440 case '\n': 441 if (label_chunk_info[here + 1].d) 442 ++here; 443 break; 444 445 case KEY_HOME: 446 here = 0; 447 break; 448 449 case KEY_END: 450 while (label_chunk_info[here + 1].d) 451 ++here; 452 break; 453 454 case KEY_F(1): 455 case '?': 456 systemDisplayFile("disklabel.hlp"); 457 break; 458 459 case 'C': 460 if (label_chunk_info[here].type != PART_SLICE) { 461 msg = "You can only do this in a master partition (see top of screen)"; 462 break; 463 } 464 sz = space_free(label_chunk_info[here].c); 465 if (sz <= FS_MIN_SIZE) 466 msg = "Not enough space to create additional FreeBSD partition"; 467 else { 468 char *val, *cp, tmp[20]; 469 int size; 470 471 snprintf(tmp, 20, "%d", sz); 472 val = msgGetInput(tmp, "Please specify the size for new FreeBSD partition in blocks, or append\na trailing `M' for megabytes (e.g. 20M)."); 473 if (val && (size = strtol(val, &cp, 0)) > 0) { 474 struct chunk *tmp; 475 u_long flags = 0; 476 477 if (*cp && toupper(*cp) == 'M') 478 size *= 2048; 479 480 type = get_partition_type(); 481 if (type == PART_NONE) 482 break; 483 else if (type == PART_FILESYSTEM) { 484 if ((p = get_mountpoint(NULL)) == NULL) 485 break; 486 else if (!strcmp(p->mountpoint, "/")) 487 flags |= CHUNK_IS_ROOT; 488 else 489 flags &= ~CHUNK_IS_ROOT; 490 } 491 else 492 p = NULL; 493 494 tmp = Create_Chunk_DWIM(label_chunk_info[here].d, 495 label_chunk_info[here].c, 496 size, part, 497 (type == PART_SWAP) ? FS_SWAP : FS_BSDFFS, 498 flags); 499 if (!tmp) { 500 msgConfirm("Unable to create the partition. Too big?"); 501 break; 502 } 503 else if (flags & CHUNK_IS_ROOT) { 504 if (tmp->flags & CHUNK_PAST_1024) { 505 msgConfirm("This region cannot be used for your root partition as it starts\nor extends past the 1024'th cylinder mark and is thus a\npoor location to boot from. Please choose another\nlocation for your root partition and try again!"); 506 Delete_Chunk(label_chunk_info[here].d, tmp); 507 break; 508 } 509 else if (!(tmp->flags & CHUNK_BSD_COMPAT)) { 510 msgConfirm("This region cannot be used for your root partition as\nthe FreeBSD boot code cannot deal with a root partition created in\nsuch a location. Please choose another location for your root\npartition and try again!"); 511 Delete_Chunk(label_chunk_info[here].d, tmp); 512 break; 513 } 514 } 515 tmp->private = p; 516 tmp->private_free = safe_free; 517 record_label_chunks(); 518 } 519 } 520 break; 521 522 case 'D': /* delete */ 523 if (label_chunk_info[here].type == PART_SLICE) { 524 msg = MSG_NOT_APPLICABLE; 525 break; 526 } 527 else if (label_chunk_info[here].type == PART_FAT) { 528 msg = "Use the Disk Partition Editor to delete this"; 529 break; 530 } 531 Delete_Chunk(label_chunk_info[here].d, label_chunk_info[here].c); 532 record_label_chunks(); 533 break; 534 535 case 'M': /* mount */ 536 switch(label_chunk_info[here].type) { 537 case PART_SLICE: 538 msg = MSG_NOT_APPLICABLE; 539 break; 540 541 case PART_SWAP: 542 msg = "You don't need to specify a mountpoint for a swap partition."; 543 break; 544 545 case PART_FAT: 546 case PART_FILESYSTEM: 547 p = get_mountpoint(label_chunk_info[here].c); 548 if (p) { 549 p->newfs = FALSE; 550 record_label_chunks(); 551 } 552 break; 553 554 default: 555 msgFatal("Bogus partition under cursor???"); 556 break; 557 } 558 break; 559 560 case 'N': /* Set newfs options */ 561 if (label_chunk_info[here].c->private && 562 ((PartInfo *)label_chunk_info[here].c->private)->newfs) 563 getNewfsCmd(label_chunk_info[here].c->private); 564 else 565 msg = MSG_NOT_APPLICABLE; 566 break; 567 568 case 'T': /* Toggle newfs state */ 569 if (label_chunk_info[here].type == PART_FILESYSTEM && 570 label_chunk_info[here].c->private) 571 ((PartInfo *)label_chunk_info[here].c->private)->newfs = 572 !((PartInfo *)label_chunk_info[here].c->private)->newfs; 573 else 574 msg = MSG_NOT_APPLICABLE; 575 break; 576 577 case 'W': 578 if (!msgYesNo("Are you sure you want to go into Wizard mode?\n\nThis is an entirely undocumented feature which you are not\nexpected to understand!")) { 579 int i; 580 Device **devs; 581 582 dialog_clear(); 583 end_dialog(); 584 DialogActive = FALSE; 585 devs = deviceFind(NULL, DEVICE_TYPE_DISK); 586 if (!devs) { 587 msgConfirm("Can't find any disk devicse!"); 588 break; 589 } 590 for (i = 0; ((Disk *)devs[i]->private); i++) 591 slice_wizard(((Disk *)devs[i]->private)); 592 dialog_clear(); 593 DialogActive = TRUE; 594 record_label_chunks(); 595 } 596 else 597 msg = "A most prudent choice!"; 598 break; 599 600 case 27: /* ESC */ 601 labeling = FALSE; 602 break; 603 604 default: 605 beep(); 606 msg = "Type F1 or ? for help"; 607 break; 608 } 609 } 610 variable_set2(DISK_LABELLED, "yes"); 611 dialog_clear(); 612 refresh(); 613 return 0; 614} 615 616 617 618